Cage for radial roller bearing

Patent metadata

Field	Value
Publication number	US-8944696-B2
Application number	US-201213824797-A
Country	US
Kind code	B2
Filing date	Oct 16, 2012
Priority date	Oct 17, 2011
Publication date	Feb 3, 2015
Grant date	Feb 3, 2015

Abstract

Achieved is a cage for a radial roller bearing that is made by axial draw molding, and that can suppress wear due to friction between the end sections in the axial direction and the guide surfaces of the opposing members, without the assembly direction being restricted, even when guide surfaces of opposing members are not able to support the cage over the entire area of the end surfaces in the axial direction. The cage 7 c is composed of a pair of circular ring shaped rim sections 8 e , 8 f and a plurality of column sections 9 , with the spaces between column section 9 that are adjacent in the circumferential direction functioning as pockets 10 . Outer-diameter side concave sections 23 a , 23 b are provided at a plurality of locations on the outer circumferential surfaces of the rim sections 8 e , 8 f in portions that are aligned in the axial direction with the pockets 10 , and inner-diameter side concave sections 24 a , 24 b are provided at a plurality of locations having a different phase in the circumferential direction than the outer-diameter concave sections 23 a , 23 b on the inner circumferential surfaces of the rim sections 8 e , 8 f in portions that are aligned in the axial direction with the pockets 10 . Moreover, on one rim section 8 e and the other rim section 8 f , the phases in the circumferential direction of the outer-diameter side concave sections 23 a , 23 b and the inner-diameter side concave sections 24 a , 24 b are different.

First claim

What is claimed is:

1. A cage for a radial roller bearing, which is made by axial draw molding of synthetic resin that uses a mold comprising a pair of split molds, comprising:
a pair of rim sections that are circular ring shaped and that are concentric with each other, being separated by an interval in an axial direction;
a plurality of column sections that are intermittently provided in a circumferential direction and span between the rim sections; and
a plurality of pockets…

Assignees

• Nsk Ltd

Inventors

• Ishibashi Yutaka

Classifications

• F16C19/48

  Mechanical Engineering · mapped topic

• F16C33/4694

  Mechanical Engineering · mapped topic

• F16C33/516

  Mechanical Engineering · mapped topic

• F16C33/4635 Primary

  Mechanical Engineering · mapped topic

• F16C2361/61

  Mechanical Engineering · mapped topic